Wireless key input processing apparatus for a display apparatus using a universal serial bus

1. A wireless key input processing apparatus for a display apparatus using a universal serial bus (USB), comprising: a key input unit having an infrared transmitting unit for converting a key signal inputted by a user through at least one of a wireless keyboard and a wireless mouse to an infrared signal, and for transmitting the infrared signal wirelessly as a wireless key signal; a display unit for receiving the wireless key signal transmitted by the infrared transmitting unit, for converting the wireless key signal to USB information, and for outputting the USB information through the USB as upstream data; and a personal computer (PC) for identifying a key input in consideration of information from said at least one of the wireless keyboard and the wireless mouse as recorded in a read-only memory and a basic input/output system (ROM BIOS) upon receipt of the USB information from the display unit; wherein, when an accurate signal is inputted, said PC outputs an identifying signal reporting same and outputs a process signal corresponding to the key signal to the display unit.

2. The apparatus as claimed in claim 1 , wherein the display unit includes: an infrared receiving unit for receiving the infrared signal transmitted wirelessly by the infrared transmitting unit as the wireless key signal; a USB controller for converting the wireless key signal received by the infrared receiving unit to the USB information; and a USB hub for outputting, as upstream data, the USB information from the USB controller to the PC through the USB, and for transmitting the process signal corresponding to the key signal received from the PC to peripheral equipment as downstream data under the control of the USB controller.

3. The apparatus as claimed in claim 2 , wherein the PC includes: a root hub for receiving the USB information outputted by the USB hub through the USB, and for outputting the USB information; and a USB host controller for receiving the USB information outputted by the root hub, and for identifying an input key signal of the USB information in consideration of the information from said at least one of the wireless keyboard and the wireless mouse as recorded in the ROM BIOS; wherein, when the accurate key signal is inputted, the USB host controller outputs the identifying signal reporting same, and outputs the process signal corresponding to the key signal so as to transmit the process signal to the USB hub through the root hub as upstream data.

4. The apparatus as claimed in claim 1 , wherein the PC includes: a root hub for receiving the USB information from the display unit, and for outputting the USB information; and a USB host controller for receiving the USB information from the root hub, and for identifying the key input in consideration of the information from said at least one of the wireless keyboard and the wireless mouse as recorded in the ROM BIOS; wherein, when the accurate key signal is inputted, the USB host controller outputs the identifying signal reporting same, and outputs the process signal corresponding to the key signal to the display unit.

5. A wireless key input processing apparatus for a display apparatus using a universal serial bus (USB), comprising: key input means for converting a key signal inputted by a user to a wireless key signal, and for transmitting the wireless key signal; display means for receiving the wireless key signal transmitted by the key input means unit, for converting the wireless key signal to USB information, and for outputting the USB information through the USB as upstream data; and a personal computer (PC) for identifying the key signal in consideration of information recorded in a read-only memory and a basic input/output system (ROM BIOS) of said PC upon receipt of the USB information from the display means; wherein, when an accurate key signal is inputted, said PC outputs an identifying signal reporting same and outputs a process signal corresponding to the accurate key signal to the display means.

6. The apparatus as claimed in claim 5 , wherein the display means includes: a receiving unit for receiving the wireless key signal transmitted wirelessly by the input means; a USB controller for converting the wireless key signal received by the receiving unit to the USB information; and a USB hub for outputting, as upstream data, the USB information from the USB controller to the PC through the USB, and for transmitting the process signal corresponding to the key signal received from the PC to peripheral equipment as downstream data under the control of the USB controller.

7. The apparatus as claimed in claim 6 , wherein the PC includes: a root hub for receiving the USB information outputted by the USB hub through the USB, and for outputting the USB information; and a USB host controller for receiving the USB information outputted by the root hub, and for identifying the key signal from the USB information in consideration of the information recorded in the ROM BIOS; wherein, when the accurate key signal is inputted, the USB host controller outputs the identifying signal reporting same, and outputs the process signal corresponding to the accurate key signal so as to transmit the process signal to the USB hub through the root hub as upstream data.

8. The apparatus as claimed in claim 5 , wherein the PC includes: a root hub for receiving the USB information from the display means, and for outputting the USB information; and a USB host controller for receiving the USB information from the root hub, and for identifying the key signal in consideration of the information recorded in the ROM BIOS; wherein, when the accurate key signal is inputted, the USB host controller outputs the identifying signal reporting same, and outputs the process signal corresponding to the accurate key signal to the display means.

9. The apparatus as claimed in claim 5 , wherein said key input means comprises one of a wireless keyboard and a wireless mouse having an infrared transmitting unit.

10. The apparatus as claimed in claim 9 , wherein said display means comprises an infrared receiving unit and a USB controller for converting the wireless key signal to the USB information, said wireless key signal comprising an infrared signal transmitted by said infrared transmitting unit.

11. The apparatuse as claimed in claim 5 , wherein said display means comprises an infrared receiving unit and a USB controller for converting the wireless key signal to the USB information.

12. The apparatus as claimed in claim 1 , wherein when an inaccurate signal is inputted, said PC outputs a NAK signal to said display unit, informing of occurrence of an error.

13. The apparatus as claimed in claim 2 , wherein when an inaccurate signal is inputted, said PC outputs a NAK signal to said USB controller, informing of occurrence of an error.

14. The apparatus as claimed in claim 3 , wherein when an inaccurate signal is inputted, said USB host controller outputs a NAK signal to said USB controller, informing of occurrence of an error.

15. The apparatus as claimed in claim 4 , wherein when an inaccurate signal is inputted, said USB host controller outputs a NAK signal to said display unit, informing of occurrence of an error.

16. The apparatus as claimed in claim 5 , wherein when an inaccurate signal is inputted, said PC outputs a NAK signal to said display means, informing of occurrence of an error.

17. The apparatus as claimed in claim 6 , wherein when an inaccurate signal is inputted, said PC outputs a NAK signal to said USB controller, informing of occurrence of an error.

18. The apparatus as claimed in claim 7 , wherein when an inaccurate signal is inputted, said USB host controller outputs a NAK signal to said USB controller, informing of occurrence of an error.

19. The apparatus as claimed in claim 5 , wherein when an inaccurate signal is inputted, said USB host controller outputs a NAK signal to said display means, informing of occurrence of an error.